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IEEE 802.16e based WIMAX is a promising technology for broadband wireless access (BWA) because of its high scalability, large coverage area, high data rates and low cost of system deployment. Unlike wireless Local Area Networks (LANs), WIMAX network supports Quality of Service (QoS) to different types of network traffic and has introduced several mechanisms at Medium Access Control (MAC) layer to...
Theoretically, IEEE 802.15.4 is more suitable for resource-constraint ad-hoc network because of its low power consumption characteristic. However, performance of IEEE 802.11 is unknown if its transmission power and receiver sensitivity are limited to match those levels of IEEE 802.15.4. In this paper, the performance evaluation of IEEE 802.11 against IEEE 802.15.4 with those power levels is presented...
The increasing demands for multimedia applications with various QoS requirements arouse the interest of researchers in the Fourth-generation wireless networks such as WiMAX. In order to ensure that the QoS requirements of these applications are met, effective scheduling algorithms must be designed. Even though it may be trivial to ensure that the minimum QoS of all service classes is attained, this...
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